Maybe it's because I access this site from my phone but I'm not sure I could handle a large swap with only 1:1 trades. If I list 50 varieties of seed and 25 people try to make me an offer & I have to look at all those seed lists to try and find something to trade my phone will die! And everything is first come, first served so there's a chance that even if they had something it'd be gone before my phone charges back up. It would have to be either a focused swap or one with a limited number of participants.
